A pool cleaner is a piece of equipment to clean the bottom of swimming pools. Although many also clean walls and water lines. They can be hydraulic (suction or pressure), or electric.
The most basic model, usually referred to as "manual", is a hose that, connected to a special suction socket (pool cleaner socket) or to a skimmer, collects dirt from the bottom thanks to a brush or dustpan that is it passes manually, usually with a pole to direct it. The suction force is provided by the pump of the treatment plant.
The semi-automatic hydraulic models (Zodiac T3, T5) have different systems that, thanks to the force of the passage of water, perform an autonomous movement avoiding having to depend on the action of man to move around the bottom and walls of the pool , achieving coverage from 50 to 99%.
Hydraulic suction models are much more popular and popular on the market thanks to a more affordable price and ease of use, without any need for pre-installation. They are characterized by the use of diaphragm systems, currently with DiaCyclone technology. Others are based on pendulum systems. They are known as Manta, Octopus ... In all cases, random movements and without any control. Depending on the model and manufacturer, it is possible to offer cleaning or passage through walls (passage through walls does NOT guarantee cleanliness).
The hydraulic models of impulsion or pressure, with an efficiency and coverage far superior to all other systems, achieve total coverage of the pool (except steps, like any other system). They are based on the pressure drive of clean water thanks to the installation of a pressure pump in the swimming pool's hydraulic circuit, fed by the water itself treated by the filter, it conducts this water through the pool cleaner line, converted by means of a simple bypass in impulsion. Most models have their own waste filter, in such a way that it avoids the consumption of water and handling when washing the sand filters of the treatment plant. Total coverage, distribution of chemically and thermally treated water, total autonomy, possibility of not removing the water throughout the year ...
Electric models, with a greater presence in the market in recent years, work with protected motors and powered by electricity, at 12 or 20 volts. They can be with two or three motors, direct traction or by belts and caterpillars, simple or 4wD (4x4), rigid filters, fabric or cartridge ... with remote control or not, transport trolley, possibility of timed connection, for work alone bottom or bottom and walls ... Basically they are characterized by their total autonomy, ease of use and capacity to retain dirt in their own filter, also managing to avoid many cleaning of sand filters and, therefore, consumption and time. The movement of these equipment is determined by factory software, allowing optimal coverage in most pools. They are not suitable to be left in the pool continuously. There are basically two technologies, the Standard, and the Vortex technology, from Zodiac.